public void TestInitialize() {
app = new WindowsAppFriend(Process.Start("Target.exe"));
WindowsAppExpander.LoadAssembly(app, GetType().Assembly);
dynamic win = app.Type(typeof(Application)).Current.MainWindow;
dynamic grid = win._grid;
dynamic target = app.Type<ListBox>()();
grid.Children.Add(target);
target.ItemsSource = Enumerable.Range(0, 100).Select(i => "value " + i).ToArray();
listBox = new WPFListBox(target);
}